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Palmetto State Armory
Overview
The PSA Custom Fathers of Freedom 5.56 Full Auto Profile Bolt Carrier features a phosphate finish, which offers enhanced corrosion resistance and durability for your build. Designed specifically for 5.56 NATO caliber, this full-auto bolt carrier ensures reliable cycling and performance, especially when paired with a mid-length gas system. This component is a popular choice for builds focused on versatility and sustained fire capability.
PSA Custom Fathers of Freedom 5.56 Full Auto Profile Phosphate Coated Bolt Carrier by Microbest
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PSA Custom Fathers of Freedom 5.56 Full Auto Profile Phosphate Coated Bolt Carrier by Microbest ranked #108 of the 217 bolt carrier groups builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since January 2026. All time, it ranks #39 of the 504 bolt carrier groups builders have added. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (82%, then .223 Wylde 10%), split between mid-length (48%) and carbine-length (27%) gas systems, and nearly all AR-15.
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the PSA Custom Fathers of Freedom 5.56 Full Auto Profile Phosphate Coated Bolt Carrier by Microbest
| Build | Parts | Total |
|---|---|---|
 | 28 | $2047.45 |
 | 15 | $1164.02 |
 | 25 | $2491.98 |
 | 9 | $1463.65 |
 | 19 | $3329.43 |
 | 16 | $948.02 |
 | 12 | $1253.22 |
 | 16 | $948.02 |
 | 15 | $1259.98 |
 | 16 | $1874.50 |
 | 13 | $2082.71 |
 | 12 | $917.38 |
1 global rating
Top reviews
BCG is built right, lockup and ejection are correct. only quirk is the carrier was tight in an aero upper for the first 100 rds, some break in friction. now after 400 rds it glides clean. likely tighter clearance than other BCGs i have run